HowtoUse ?

Hello, we would be interested to use your software, but after installation of got sources following
the README, we don't understand howto start a simulation, it seem some files are missing, or may
be we haven't understood the process...Could you help ? We would like to compute Scat, abs, and Ext crosssections
for a gold sphere ( in 2D...) with a gaussian pulse ?
Thanks in advance
Regards
JM